found this at a estate sale, i have no way to test it.. appears to be missing one of the knobs that would go to the mount bracket, cosmetic looks to have seen light use, wish i could say more about it, take a chance maybe its what you need. offered as is parts or repair only. thanks so much. thank you so very much for your business. item will always come as pictured. shipping is included for the USA with the exception of AK HI or PR will require additional postage. have a great day!!!